Pregnant Olivia Wilde and Protective Paco Take a Stroll

Making sure Paco's needs don't go unanswered as she prepares for the arrival of her bundle of joy, Olivia Wilde took her dog to doggie day camp in Los Angeles on Friday (December 20).

The "House" star wore blue jeans and a green sweater, which she took off to reveal a black T-shirt from Kanye's Yeezus tour.

On Tuesday, the 29-year-old actress sat down with Jay Leno on "The Tonight Show" and chatted about her new experience.

Speaking about people's varied reactions, Olivia shares, "That's the worst thing in the world - when you congratulate a non-pregnant woman on her pregnancy. I find that people will go to such great lengths not to mention it. Even when you are clearly -- like, I feel like I'm clearly pregnant -- people will be like, 'Hey, would you like a glass of whiskey? Would you like to get on this roller coaster?' And I go, 'Oh, well, I'm actually pregnant.' And they go, 'What?!' Unless someone's watching you give birth, I don't think they want to make the wrong call."